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kifflom [539]
3 years ago
7

What is the solution of this equation? -1y = -4

Mathematics
1 answer:
tigry1 [53]3 years ago
8 0

Answer:

y = 4

Step-by-step explanation:

-1y = -4

Divide both sides by -1 to get y by itself.

-1/-1 = -4/-1

y = 4

It's positive because there are two negatives, which mean they cancel out.

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1 2VX - V4x - 3 4x 3 = √4x - 3​
kati45 [8]

Answer:

hello lamareeyaj tht is a very brilliant question

so we have 12vx - v4x- 34x3=4x(1/2) - 3

so the answer is very simple

i.d.k

Step-by-step explanation:

5 0
3 years ago
Andrew is showing his work in simplifying (−5.7 + 2.2) − 1.1.
Leviafan [203]
Answer: In step 1, Andrew used the commutative property

Explanation:
In step 1 he used commutative, which is a + b = b + a
(- 5.7 + 2.2) = 2.2 + (- 5.7)

Step 2, he used associative property, not the distributive.

Step 3, he just added5.7 + 1.1 = 6.8

Step 4, he distributed the negative sign:
- (6.8) = - 6.8
6 0
2 years ago
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Ratios! I need help, please! I'm really bad at Math
nekit [7.7K]

Answer:

first would be 8

second is 12

third is 16

last is 6

Step-by-step explanation:

6 0
3 years ago
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Ancient paintings were found on cave walls in South America. The Carbon-14 in the paintings was measured and was found to be 19%
balu736 [363]

Answer: C. 13,839 (the answer is not among the given options, however the result is near this value)

Step-by-step explanation:

The exponential decay model for Carbon- 14 is given by the followig formula:

A=A_{o}e^{-0.0001211.t}  (1)

Where:

A is the final amount of Carbon- 14  

A_{o}= is the initial amount of Carbon- 14

t is the time elapsed (the value we want to find)

On the other hand, we are told the current amount of Carbon-14 A  is 19\%=0.19, assuming the initial amount of Carbon-14 A_{o}= is  100\%:

A=0.19A_{o} (2)

This means: \frac{A}{A_{o}}=0.19 (2)

Now,finding t from (1):

\frac{A}{A_{o}}=e^{-0.0001211.t}  (3)

Applying natural logarithm on both sides:

ln(\frac{A}{A_{o}})=ln(e^{-0.0001211.t})  (4)

ln(0.19)=-0.0001211.t  (5)

t=\frac{ln(0.19)}{-0.0001211}  (6)

Finally:

t=13713.717years  This is the age of the paintings and the option that is nearest to this value is C. 13839 years

6 0
2 years ago
Find the area of the shaded part in this exercise. (URGENT. FOR TODAY)
Liono4ka [1.6K]

Answer:  80

Step-by-step explanation: Well the 60 is too slanted and 90 would be straight 70 would be less straight then it is 80

3 0
2 years ago
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